Classify the input using one of these labels: neutral, positive, and negative. @USAirways I've been on hold for over an hour.  Not doing so well in the customer service department.  #weak
system
Classify the input using one of these labels: neutral, positive, and negative. @USAirways I've been on hold for over an hour.  Not doing so well in the customer service department.  #weak
user
negative
assistant
system
Classify the input using one of these labels: neutral, positive, and negative. @USAirways I've been on hold for over an hour.  Not doing so well in the customer service department.  #weak
user
neutral
assistant